Starch-cooler.



Patented Feb.12,191 8.

4 SHEETS-SHEET I 1. B. ADI.

smncn COOLER.

APPLICATION FILED MAY 24. I917- Patented Feb. 12, 1918.

4 SHEETS-SHEET 2- 643061: we q J. B. ADT.

STARCH COOLER.

weucmon HLED my 24. 1911.

Patented Feb. 12,1918.

4 SHEETS-SHEET 3.

gnmzu mz 3. 8. AUT.

STARCH COOLER.

urucmou HLED um 24. I9!!- Patented Feb. 12, 1918.

4 SHEETS-SHEET 4.

STARCH-COO'LE R.

Specification of Letters Patent.

. no STATES PATENT QFFICE;

JOHN 12, AM; or BALTI ORE, MARYLAND,

PatentedFeb. 12, 1918.

Application-filed may 24, 1917. Serial No. 170,794,

To J l o/ 0917, it may concer'ng Id e it knoyvnthat I, JoI-In B. snags citizen of the United States, residing at Baltimore city, State of Maryland, have invented certain n'ew and useful Iinprorelnent's in stanchfcoolers, of which the following isia spec ficiit ior r, V a

apparatus which is the subject-matter of the present application for patent is desi ned for coolinglstarch as it comes from thejdrier, and itsohjeot isto provide a simple; and fei ii cient cooling apparatus, which isl so constructed that then aterial, when passing thenethrough, is, e'nt r 1y at venting foreign matter, usually present in mes rom ,mix ng ,Wit t e e iQ The injfef on also has for; itsobiect to provide use nd i-rnpre dfa gite othe'tlsfersh as tpasse' 1 2 5 et hf dediiemieg of t '6 i s oiiinn e t ned di inane ales.

18, e cent al ng tudinal. s c n 'F gme ,1 v unes psi-se m h .1 2 r f i 3; t Plan w t -els i i .F-i lB-i at; e il s' l e e srs e ene the 1 e--Blqtfis 1;; a i

4 is a similar section onthehne iFis-leendu a i isa; det i Y Re i e spee fi ly mtl dreinnes, 1

den t a l n r ce ldrnmi os at s y .fie li ft the supp s in tati ner l Boner; sqtm bt d an ou l t dus .3-

pfi's i go i abl t n sjl moun ed on a ta isfiwefi iwsit f o es of hewingsex nd lis er iml el t e mg et suie thereof, as shown in Fig. 4. valve is mounted in the outlet dudf T a icmiipenyms' d aw-j hedmi is s o e it. is in:

Thus, it will be seen that when the two valves are closed, the inside of the drum is completely shut off from the outside air, and all air or foreignmatter is prevented from passin through the drum.

In t e drum 10 vis located a rotary agitatingand cooling element composed of a eries of return bend coils 16 extending in the, direction of the length of the drum, and paddles 17 extending parallel thereto. A. hollow shaft ,18 extends lengthwise and centra-lly throu hrthe drum and carriesat. suitable interva s supports for the coils, these supports being spider" arms ,19 radiating from a huh-19 :fixedon the shaft. I By suitable clamps 20 the coils are ri idlysecured to the spider arms. The pad les are associated with alternate ones of the coils, they being also carried by the spid er arms and secured thereto by the clan ps 20'.

The shaft 18 passes at. one end through one of the heads 1(l-and is here supported,

oirthe ontsidfl of, the drum, in a bearing .21.

This end of the shaft has a connection with a supply pipe 22 ,for a. cooling medium which ma be Water, said pipe being pro-o vided with a controllin valve 22% The end.

sion26'which passes" through said head and is journaled on. the outside of the latter in a hearing 27. The shafts 18 and 26 are in axial, alinelnent, and u on ,applying power to the latter to rotatet e same, thecoils 16 a'nd the paddles 17 are revolved in the drum 10.

Theshaft 26 is operated from a drive shaft 28 ohtainingponer from, any suitable source, .and ,connectedbya bevel, gearing to a short countershaft 3O havinge. pinion 31 which isin mesh with a spur gear 32 on the Sh ff-.26,

To the outer end of, the shattflfi. is ,connected an outlet ipe331f0r thelcooling medium, and, 1 stu ,ngbox' 34; isalso provided,

Each coil 16 is connected .at, .on e,endf, to

25, res'pective1y, to which the coilsv the hen, en24jandiat rthe ptlieigendtmthe header 2 the titst'iheritioriod mfd oving the inlet end, and the other the outlet end. l The through the same into the header 2 1, from which :it passes intothe coils l6, and after circulating through the latter it passes into the outlet header 25 and is discharged from the latter through the shaft 26 and the pi. e33;

. ach bank of coils 16 consists of four pipesc'onnected by bends or elbows to form one continuous passageway for the cooling medium. The inlet and outletconnections of the coils are at one and thev'same' end, and as these connections are made with the headers 24: and 25 the diameter of the former is less than that of thelatter. Each one of. thesp'ider arms 19 carries a bank of coils as shown in Fig, 3, and said arms are curved in the direction ofth'eir length or deflected sidewise near their outer ends, the coils being correspondingly arrangedso that they are presented squarely to the material in the drum 10. I

The drum 10 is also provided with a side door 35 so that access to its interior may be had.

Fig. 5 shows how the coils 16"are connected to the headers 24 and 25, the latter carrying'nipples 36 to which the ends of the pipes forming the coils are connected.by coupling nuts 37.' a Any suitable means ma be provided for operating the' i'ralves in the inlet hopper 12 andthe outlet duct'll '3. The starch is fed into the'hoppejr 12a-nd allowed to flow into the drum 10 through the rotating inlet valve and .afterp ass'ing through the drum it is dischargedriinto the outlet duct 13 set the valrelfithereini As hereinb'efore escribed, the ya-lvesform a complete closure for the'drum, to exclude air and forei matter. Fig. 4 clearly illustrates the operationof the iralres. Two opposits valve wings; are shown extendin across the hopper; and before thesewings swing away from closing position, the next pair of win s comes "into closing position.

The starch is fed into the druin and-leaves the same in snlall quantities andv it'the'refore passes through the drum slowenou h to be cooled. The paddles li and the coils agitate the starches it'passes thrjoughthe drum. it being cont nually elevated and allowed to' flow from the paddles over the coils below. Thus every particle of, the starch is brought into contact with the coils and the entire mass of starch is promptly and thoroughly cooled.

While the apparatusis designed more particularly for cooling starch, it will be understood that it is not limited to such material, and it will also be evident that vainaf-teru The apparatus can also be used for-heating and drying material by passing a heating-medium through the coils w I claim:

1. A material tempering apparatus comprising a stationary drum, axially alined hollow shafts entering the ends of the drum, one of said shafts assing through the drum from one end an terminating at its inner end adjacent to the other end, a headerconnected to the inner end of the lastmenti'oned shaft; a header connected to the inner end of the othershaft, bearings on the outside-45f the drum in which the shafts are rotatably supported, one of the shafts havin an inlet for a temperin inediui'n and the ot er shaft having an .outet for said I ne dium',v driving means for the shafts, and coils carried by the first mentioned shaft inside the drum, each. of saidcoils having one end connected toonej of the headers and the other end to the other 96 header. f

2. Amaterialtempering apparatus cornprising a stationary drum, axially calcified hollow shaftsentering the ends of the drum; one of said shafts passing through the drum from one'end and term nating at its inner end adjacentto theother end. a hea er, connected to the inner end of the last r hentioned shaft,' a header connected tjo fthe' inner eii' of, the other sha l bearings onthe outs e o v 100 the dr'mpon which the shafts are rotatahlj supported. one of the shaftshat ing aninljlet for a tempering medium and the .otherrshtgft having an outlet for saidme'diiirn. driving means-forfthe shafts. coils carried by the first mentioned shaft inside ph drumeeachwf said coils having otie endjconhec'fie etoiohe of the headers and the other B Ild tQ TITQ other header. and agitating blades associated with the coils and movable therewith,

3. A material tempering. apparatus comprising a stationary drum, axiallvjalinedhoh low, shafts entering the ends of. the drum, oneof said shafts passing through the'drurfi froth intend and terminating at its inner end adiace'ntto the other end. alheader, con-V nected to the inner end of the last mentioned shaft. a hea derconnected to tlie inner endof the other shaft. hearings" on. the ,oi tsideof the drum in which the shafts are {r0tdtablv supported. one of. the shafts havinlan, inlet for atempering medium and the: other shaft having an outlet for said medium. dri ting means for theshafts. spider arms fastened to the first mentioned shaft inside thidrurn and extending radially from the shaft. and co lssupnortedby said armsueach of said coils having one end connected to onefof the headers and the other end to the other header.

4. A material tempering apparatus comprising a stationary drum, axially alined hollow shafts entering the ends of the drum, one of said shafts passing through the drum from one end and terminating at its inner end adjacent to the other end, a header connected to the inner end of the last mentioned shaft, a header connected to the inner end of the other shaft, hearings on the outside of the drum in which the shafts are rotatably supported, one of the shafts having an inlet for a tempering medium and the other shaft having an outlet for said medium, driving means for the shafts, spider arms fastened to the first mentioned shaft inside the drum and extending radially from the shaft, coils supported by said arms, each of said coils having one end connected to one of the headers and the other end to the other header, and agitating blades carried by the arms and extending parallel to the coils.

5. A material tempering apparatus comprising a stationary drum havm inlet and outlet passages for the material, rotary valves in said passages, each of said valves comprising a central hub and wings radiating therefrom, the length of the wings being such that opposite ones thereof reach across the passages for shutting off the interior of the drum from the external atmosphere, and a revoluble tempering and agitating element in the drum.

In testimony whereof I aflix my signature in the presence of two witnesses.

JOHN B. ADT.

Witnesses:

E. WALTON BnnwmoToN, HOWARD D. ADAMS.

copies at this patent may he obtained tor five cents each, by addressing the commissioner of ratantl, Washington, D. 0. 

